Features: The 5.8G module combines microwave motion detection and thermal sensing technology to achieve double verification accuracy, effectively reducing false alarms in human activity detection while maintaining high sensitivity through floating frequency design. Featuring 3.7V-18V compatibility, low standby power consumption, this module enables seamless LED control integration for automated lighting across diverse environments. Ideal for enthusiasts, home integrators, and security installers seeking motion activated solution for residential or commercial applications. Perfectly adapts to lighting automation, garage security monitoring, office energy saving, and other scenarios requiring precise human detection. Engineered with advanced 5.8GHz and sensing, this floating frequency module deliver in wall penetrating detection while maintaining minimal space requirements for embedded installations. Specifications: Component:PCB Size:Approx. 21x12mm/0.82x0.47inch Working: 3.7V~18V Operating current: <3.5mA Frequency: 300MHz Package Includes: 2 Optional Package: Package 1 Include:4Pcs Detector Module Package 2 Include:2Pcs Detector Module note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.